20300312312 has 64 divisors (see below), whose sum is σ = 45051360000. Its totient is φ = 8570203488.

The previous prime is 20300312311. The next prime is 20300312317. The reversal of 20300312312 is 21321300302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300312311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128639 + ... + 239057.

It is an arithmetic number, because the mean of its divisors is an integer number (703927500).

Almost surely, 2^20300312312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20300312312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22525680000).

20300312312 is an abundant number, since it is smaller than the sum of its proper divisors (24751047688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20300312312 is a wasteful number, since it uses less digits than its factorization.

20300312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110513 (or 110495 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20300312312 its reverse (21321300302), we get a palindrome (41621612614).

The spelling of 20300312312 in words is "twenty billion, three hundred million, three hundred twelve thousand, three hundred twelve".